WHY VALLEY SOLAR

The Valley Solar Difference

Choosing a solar installer isn’t just about panels — it’s about performance, service and lasting value. Here’s why more homeowners and businesses across Western Mass choose Valley Solar. 

Guaranteed Performance

Every Valley Solar system includes SunAlert™ proactive monitoring and a 95% production guarantee. If your system underproduces, we fix it — and pay you the difference.

Battery Storage Experts

With over 800 battery systems installed and 30+ ESS certifications held, our in-house team leads Massachusetts in battery storage integrations.

Proven at Scale

As Western Massachusetts’ largest residential solar installer [1], Valley Solar delivers the efficiency and stability that only scale can bring — ensuring your investment goes further.

[1] Ohms Analytics, 2025.

Experienced. Local. Capable.

Founded in 2015 and based in Easthampton, MA, Valley Solar builds every project with its own in-house team — designers, electricians, and apprentices. We don’t outsource.

Built for Service

Where others treat service as an afterthought, we’ve made it our core business. Our dedicated team monitors and maintains thousands of systems — including many we didn’t install.

One Partner, Start to Finish

Design, engineering, permitting, installation, and service — all handled in-house by our licensed team. No subcontractors. No handoffs. Complete accountability from day one.

Our Process

From First Call to Long-Term Confidence 

See how our clear, proven process puts you in control and makes Valley Solar the most trusted solar energy contractor in Western Mass. 

  • Transparent from day one – no hidden costs or change orders.
  • Local expertise – all work handled by Valley Solar’s in-house team.
  • Performance guaranteed – rigorous engineering ensures your system delivers as promised.
  • Support that lasts – proactive SunAlert monitoring included at no extra cost.

OUR GUARANTEE

Performance You Can Count On

When you choose Valley Solar, you’re not just getting panels on your roof — you’re getting peace of mind. That’s why we back every installation with one of the strongest guarantees in Western Massachusetts.

95% Production Guarantee

  • Your system is guaranteed to perform at 95% of projected output for the first two years.
  • If it falls short, we pay you for the difference at $0.30 per kWh (up to $800/year).

Installation Warranty

  • 25-year equipment warranty to ensure your panels and components keep performing.
  • 10-year workmanship and roof protection, so you know your home is in safe hands.

The SunAlert Advantage

Think of our performance guarantee like a promise — and SunAlert is the reason we can keep it. Most companies just hope their systems perform. We actually watch them. With 24/7 monitoring, automatic alerts, and local technicians ready to act, SunAlert is the behind-the-scenes system that makes our guarantee real. It’s not magic — it’s smart, proactive care built into every Valley Solar installation.

 

  • Included with every new system – no extra cost, just peace of mind built in.
  • Always-on protection – 24/7 monitoring keeps your system delivering the power we promise.
  • Fast local response – automated case creation ensures quick fixes from the same Valley Solar team who installed your system.
Ready to Start Your Solar Journey?

Trusted by Homeowners Across Western MA.

See why thousands of homeowners turn to Valley Solar for precise solar design, reliable installation, and proactive service that delivers lasting energy savings.

10+

years serving Western MA

2,000+

solar installations

800+

battery system installations

95%

solar production guarantee

Richard C.
Williamsburg, Hampshire County
The installation crew was impressive. The men on the roof, the electricians, and the support staff were all friendly, proficient, communicative, and responsive to all our needs. I’m retired, but if I were still in business, I’d be tempted to lure these guys onto my team 😉! Top shelf professi…
Kenneth H.
Northampton, Hampshire County
I have to say my experience with everybody at Valley Solar was thoroughly enjoyable and their professionalism was always in the forefront. From meetings to present their proposal, to regular and informative communication during the time leading up to the installation, to the awesome crew that spent…
Rich B.
Stockbridge, Berkshire County
In this day and age it has becoming increasingly difficult to find contractors who walk the walk after they have talked the talk, but it has been my experience that Valley Solar is one of those contractors who knows what they are doing, and that what they say they will do is in fact what they do. …
Tom P.
Wilbraham, Hampden County
We contacted Valley Solar late in 2023 in anticipation of our move from TX to MA. The request was more complex: install and connect solar panels to our newly purchased property in MA, install and connect our Tesla Powerwall we will bring from TX, and connect our car charger to the infrastructure in…

Our Team